The length of a rectangle is three times of its width. If the length of the diagonal is $$8\sqrt {10} $$ cm, then the perimeter of the rectangle is :

The length of a rectangle is three times of its width. If the length o

1.	The length of a rectangle is three times of its width. If the length of the diagonal is $$8\sqrt {10} $$ cm, then the perimeter of the rectangle is :
A.	$15\sqrt {10} $$cm
B.	$16\sqrt {10} $$cm
C.	$24\sqrt {10} $$cm
D.	4 cm
Answer» E.

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The length of a rectangle is three times of its width. If the length of the diagonal is $$8\sqrt {10} $$ cm, then the perimeter of the rectangle is :

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